Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3471 FMI 4 (MCM) Hydrocarbon Doser Circuit Failed Low
DESCRIPTION:
Hydrocarbon (HC) doser circuit failed.
MONITORED PARAMETER:
HC doser circuit.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
Engine Idle: One minute.
PROBABLE CAUSES:
1. Wiring between the EDV and the 120-pin ECM connection.
2. Metering unit failure.
3. Electronic dosing valve failure.
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